Borescope probe sealey vsbsp39s optional 3 9mm borescope probe 90 side view suitable for access through the smallest diesel injector or glow plugs aperture does not have any dark screen corners giving image coverage quality right to the edge of the screen features lighting leds for a clear image in dark areas use with model no vs8200 sealey vsbsp39s 3 9mm borescope probe side view